Using lidar, scientists discovered a 400-foot-long wall composed of “60 massive granite monoliths, set directly onto the bedrock in pairs at regular intervals”. The wall is 30 feet underwater and was built 7000+ years ago.
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I think if it’s underwater, it will be using high-resolution sonar (sound waves), rather than LIDAR (laser), which would not penetrate the water. But very cool discovery and article. Thanks.
Wow: I was totally wrong: it was with LIDAR. Apparently the water is clear enough and the features are shallow enough that they could use LIDAR. That’s amazing in its own right. Learn something knew every day….
(This is why we read the link before commenting here at KDO.)
Thanks for the link! My first reaction was "Where is this??". Well, it turns out it’s in my neck of the woods (or of the sea)! I hadn’t heard of it, I will pay hommage to it next time I visit the Ile de Sein.
This is my favorite story of the year. I especially love how it hints to the local legend of the sunken city of Ys. It is geographical memory that endures as myth.
A rabbit-hole journey led me to Claude Debussy's piano prelude "La Cathédrale engloutie" (The Sunken Cathedral) first performed in 1910 which I am listening to now. It, "is based on an ancient Breton myth in which a cathedral, submerged underwater off the coast of the Island of Ys, rises up from the sea on clear mornings when the water is transparent. Sounds can be heard of priests chanting, bells chiming, and the organ playing, from across the sea." - Wikipedia
What a beautiful rabbit-hole! Thanks for pointing me to a moody, romantic, evocative piece of music.
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